Wrench.



J. KING,

WRENCH. APPLICATION FILED 11.7, 1908.

91 1,048. x v Patented Feb. 2, 1909.

the invention consists in the construction,

Fig. 2 is a similar view, the movable jaw betional view taken on aplanein icated by the reception of the body of the dog 6. j The nrrnn srnirnsJACOB KING, OF CORINTH, MISSISSIPPI.

node-1 noes. Specification of Letters Patent.

Patented Feb. 2, 1909 Application filed April 7, 1908. Serial No.425,776.

"To all whom it may concern:

Be it'known that I, JAooB KING, a citizen or the United States ofAmerica, residing at Corinth, in the county of Alcorn and State ofMississippi, have inventednew and useful Improvements in Wrenches, ofwhich the following is a specification.

My. invention relates to improvements .in wrenches, and its primaryobject is the provision ofa device of this character wherein the dog forlocking the movable jaw in adjusted position can be readily andquicklymoved into and held in inactive position, whereby to-"facilitate theadjustment of the jaw, said dog being also capable of being a readilyand quickly moved into and held in active position.

A further object of my invention is the I rovision of a wrench which issimple, duraidle and efiicient, and which can be manufactured and soldata com aratively low cost.

With the above and 0t or objects in view,

combination and arrangement of parts hereinafter fully described,claimed and illustrated in the accompanying drawing, wherein:

Figure 1 is a view in side elevation of a wrench constructed inaccordance with my invention, the movable jaw being in-section.

ing shown in its entirety. Fi 3 is a secline'3-3 of Fig. 1, andFig. 4 isa detail perspective view-of the locking dog.

Referring to the drawing by reference numerals, 1 designates the shank,2 the handle, 3 the stationar ande the movable jaw of a wrenchconstriicted in accordancewith my invention. 'Ihc movable jaw is'mounted upon the shank 1 for adjustment with relation to the stationaryjaw 3, and is provided with a longitudinally extending o 'ening 5 forthe reception of the shank, 'l he movable jaw is adapted to be held orlocked in its adjusted position by means of a dog 6, which is shown indetail in. Fig. 4 of the drawing. The locking dog 6 comprises a b0dy,7pro vided with an elongated oprening 8 for the reception of the shank 1.he jaw 4 is cut away, as at 9, Fig. 2 ofthe drawing, for the body of thelocking dog 6 is extended in one direction to provide a fulcrum head 10which is mounted in a socket 11 formed the jaw 4, see Figs. 1 and 3 ofthe drawing. The fulcrum' head 10 projects laterally in one directionbeyond the plane of thebody '7 of the locking dog, whereby to provide asubstantially trian ular fulcrum head. The end wall 12 of t e socket 11is inclined laterally applied to the movable jaw rior t0 the applicationof the latter to the s ank 1.

The manner in which the fulcrum head can be inserted in the socket 11should be apparent. The outer edge-14 of the fulcrum head 10 is inclinedslightly with relation to the longitudinal center of the locking dog,whereby the locking; dog may be held in its inactive osition y'means ofa leaf spring 15 whic is adapted to bear upon the outer edge 14, andwhich is secured'at one end to the movable jawd. The spring 15 is alsoadapted to hold t he'locking dog in its active position, the manner inwhich this is accomand inwardly to permit the locking dog 6 to head frombecoming accidentally displaced when the locking dog isv plished .beingfully-illustrated Fig. 2 of the draw ng. v

' The body 7 of the locking dog is continued in one direction to rovidean operating head 16 which projects aterally beyond the mov-' able jaw4. The end walls of the o enihg 8 are arranged in parallel but inclineplanes, whereby when the locking dog is in active position,.the oppositeed es of the said walls will impinge against the s ank 1 and look thejaw in its adjusted position, and when the dog is in inactive osltion,the ends walls are spaced from the s ankto permit the jaw to be freelyadjusted thereon. The locking dog is adapted to be readily and quicklymoved into its active or inactive position through the medium of theoperating head 16, which is grooved as at 17, ,to receive the thumb oi.the user ofthe wrench.

From the foregping description taken in- -e accompanying drawing,-

conneotion with t the construction and mode of operation of theinventioh should be understood Without a further extended description.

Changes the, form, proportions and minor details of construction may bemade within the scope of the claims without departing from the spirit orsacrificing any ofthe advantages of the invention.

Having fully described and illustrated my invention, what I claim is: I

1. A wrench comprising a shank, a sta- 1e 151W, i active sald springbeing adapted to engage the fuii 1 vnench comgniisingg o 1O cl'um headto hold the looking dog in at 1 tlonch ew .e'eclhiix'i to The W tioneryjaw secured thereto, 5, mov'ebie jaw 1 vid mounted thereon, e lockingdog pivot y 1 she, A mounted upon. the movable jaw "otioh. t i adapted.to m: vided with an opening adapted to receive e i'ecei" hihfiihlc jr-6,

r shank, said (leg being projected in one dire/e 3 said u .j u

Mon to form a. fulcrum head. and 111 the ieoeuta (lZcPhvL/EHRLJL; o ehedo;

verse direction to form an operating heed, adapted to hoid tho ioch anda spring secured to the mow or inactive pon its active or inactiveposition. 5 iew mounted 1.1 'tm she, o

i u I- l .1. v v J7 A w *ench compiieing 1. sham-n, pnoh 111011. in L11011 i tlonery aw seoure vl to the shank, 2 NOT i v dog t pro ected in onejaw mounted on the shank, a 10 0 provide it 15 pivoteily mounted in themoxmbie jaw ed inclined. with relation to the hm providedwlth an openingadapted to rec-e1 e n g; dog 11 110 a. the shank, S8116 dog being proected in one i c v direction to form it fulcrum head, and aspringsecured to the movable jaw, said 1i :hhlg 20 spring being adapted toengage he fuh uln tivo or ism" heed to hold the locking (log in elthacin teeth tive or inactive position. 5 in presence 3. A Wrenchcomprising a she tionery jaw secured to the shank, 1m jaw mounted on.the shank and providmt with it socket, one end wall of Said socketheing-provided. With a lug, locking dog pro- Lon. 1x

